HIERARCHICAL, DISSIPATIVE FORMATION OF ELLIPTICAL GALAXIES : IS THERMAL INSTABILITY THE KEY MECHANISM? HYDRODYNAMICAL SIMULATIONS INCLUDING SUPERNOVA FEEDBACK, MULTI-PHASE GAS AND METAL ENRICHMENT IN CDM : STRUCTURE AND DYNAM ICS OF ELLIPTICAL GALAXIES

We present numerical simulations of galaxy formation, including star formation, in a standard, hierarchical cosmological scenario (CDM). The gas dynamics is followed with the Smooth Particle Hydrodynamics (SPH) method, and the gravitational interaction wi